Method and apparatus for increasing drilling capacity and removing cuttings when drilling with coiled tubing
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
E21B-021/06
E21B-021/00
출원번호
US-0405400
(2003-04-02)
발명자
/ 주소
Eppink,Jay M.
출원인 / 주소
Halliburton Energy Services, Inc.
대리인 / 주소
Conley Rose, P.C.
인용정보
피인용 횟수 :
21인용 특허 :
21
초록▼
An assembly for drilling a deviated borehole includes a bottom hole assembly connected to a string of coiled tubing and includes a bit driven by a downhole motor powered by drilling fluids. A surface pump pumps the drilling fluids downhole through a cross valve to provide a first path directing dril
An assembly for drilling a deviated borehole includes a bottom hole assembly connected to a string of coiled tubing and includes a bit driven by a downhole motor powered by drilling fluids. A surface pump pumps the drilling fluids downhole through a cross valve to provide a first path directing drilling fluids down the coiled tubing flowbore and a second path directing drilling fluids down the annulus. The bottom hole assembly has a downhole valve allowing flow between the flowbore and the annulus. A first flow passageway directs drilling fluids down the coiled tubing flow bore and then up the annulus and a second flow passageway directs drilling fluids down the annulus and the up the flowbore. The bottom hole assembly includes a subsurface pump capable of pumping drilling fluids from the second fluid passageway to the surface. The bottom hole assembly includes an electric motor to rotate the subsurface pump and the motor is provided with power conduits embedded in a wall of the coiled tubing. Another subsurface pump may be provided, such that the subsurface pumps pump drilling fluid with cuttings to the surface and/or pump clean drilling fluids into the downhole motor to aid drilling.
대표청구항▼
What is claimed is: 1. An assembly for drilling a deviated borehole from the surface using drilling fluids, comprising: a bottom hole assembly connected to a string of coiled tubing extending to the surface, said coiled tubing having a flowbore for the passage of drilling fluids; said bottom hole
What is claimed is: 1. An assembly for drilling a deviated borehole from the surface using drilling fluids, comprising: a bottom hole assembly connected to a string of coiled tubing extending to the surface, said coiled tubing having a flowbore for the passage of drilling fluids; said bottom hole assembly including a bit driven by a downhole motor powered by the drilling fluids, said bottom hole assembly and string forming an annulus with the borehole; a surface pump at the surface to pump the drilling fluids downhole; a first cross valve associated with said surface pump providing a first path directing drilling fluids down said flowbore and a second path directing drilling fluids down said annulus; a second cross valve adjacent the bottom hole assembly having an open position allowing flow through an opening between said flowbore and said annulus above said downhole motor and a closed position preventing flow through said opening; a first flow passageway directing drilling fluids through said first path, through said bottom hole assembly, and then up said annulus; and a second flow passageway directing drilling fluids through said second path, through said opening, and then up said flowbore. 2. The assembly of claim 1 wherein said second cross valve is in said closed position while flowing drilling fluids through said first flow passageway. 3. The assembly of claim 1 wherein said bottom hole assembly includes a check valve upstream of said downhole motor having a first position allowing flow through said downhole motor and a second position preventing flow through said downhole motor. 4. The assembly of claim 3 wherein said check valve is open and flow is through said check valve in said first position, through said downhole motor and bit, and up said annulus to the surface. 5. The assembly of claim 3 wherein said second cross valve is in said open position and said check valve is closed, and flow is through said second flow passageway, through said opening, and up said flowbore to the surface. 6. The assembly of claim 5 wherein said downhole motor is stopped while flowing drilling fluids through said second flow passageway. 7. The assembly of claim 1 wherein said first cross valve is a cross-over valve. 8. The assembly of claim 7 wherein said cross-over valve includes a fluids inlet connected to said surface pump and a fluids outlet connected to a fluids reservoir; a first inlet/exit connected to said coiled tubing flowbore and a second inlet/exit connected to said annulus; said fluids inlet and fluids outlet having a first alignment communicating said fluids inlet with said first inlet/exit and said fluids outlet with said second fluids inlet/outlet; and said fluids inlet and fluids outlet having a second alignment communicating said fluids inlet with said second inlet/exit and said fluids outlet with said first fluids inlet/outlet. 9. The assembly of claim 8 wherein said cross-over valve includes first and second housings rotatably connected together with said fluids inlet and fluids outlet connected to said first housing and said first and second inlet/exits connected to said second housing. 10. The assembly of claim 9 wherein said first and second housings rotate between said first and second alignments. 11. The assembly of claim 10 wherein said cross-over valve further includes a lock preventing rotation between said first and second alignments. 12. The assembly of claim 11 wherein said lock includes a piston reciprocating a pair of conduits to provide communication between said fluids inlet and fluids outlet and said first and second inlet/exits in said first and second alignments. 13. The assembly of claim 12 wherein said piston further includes a lock member on one of said first and second housings for locking engagement with the other of said first and second housings. 14. The assembly of claim 8 wherein said cross-over valve further includes a lock locking said first and second alignments. 15. The assembly of claim 14 further including an actuator for actuating said lock and for realigning said first and second alignments. 16. The assembly of claim 1 wherein said first cross valve includes a plurality of valves each having a first position directing drilling fluids from said surface pump to said coiled tubing flow bore and a second position directing drilling fluids from said surface pump to said annulus. 17. The assembly of claim 16 wherein said plurality of valves includes a first main valve in a first main conduit connecting said surface pump with said coiled tubing flow bore, said first main valve creating an upstream side and a downstream side of said first main conduit; a second main valve in a second main conduit connecting a drilling fluids return with said annulus, said second main valve creating an upstream side and a downstream side of said second main conduit; a first cross-over valve in a first cross-over conduit connecting said upstream side of said first main conduit with said downstream side of said second main conduit; a second cross-over valve in a second cross-over conduit connecting said downstream side of said first main conduit with said upstream side of said second main conduit; said first and second main valves being opened and said first and second cross-over valves being closed to direct drilling fluids down through said first path; and said first and second main valves being closed and said first and second cross-over valves being opened to direct drilling fluids through said second path. 18. The assembly of claim 1 wherein said bottom hole assembly includes a differential pressure gauge upstream of said second cross valve measuring the pressure differential between said flow bore and said annulus. 19. The assembly of claim 18 wherein said bottom hole assembly includes a transmitter to transmit the pressure differential measurements to the surface. 20. The assembly of claim 1 wherein said bottom hole assembly includes a first stabilizer downstream of said second cross valve. 21. The assembly of claim 20 wherein said bottom hole assembly includes a second stabilizer upstream of said second cross valve. 22. The assembly of claim 21 wherein said second stabilizer centralizes said bottom hole assembly maintaining said second cross valve a predetermined distance away from the borehole. 23. The assembly of claim 20 wherein said second stabilizer creates reduced flow areas in said annulus increasing fluid velocity at said areas. 24. The assembly of claim 21 wherein said second stabilizer is a slide-on stabilizer. 25. The assembly of claim 24 wherein said slide-on stabilizer is fastened onto said bottom hole assembly. 26. The assembly of claim 21 wherein said second stabilizer is an adjustable blade stabilizer. 27. The assembly of claim 26 wherein said adjustable blade stabilizer includes a plurality of concentric blades disposed azimuthally around said bottom hole assembly. 28. The assembly of claim 21 wherein said second stabilizer is an expandable bladder stabilizer. 29. The assembly of claim 28 wherein said expandable bladder stabilizer includes an actuator. 30. The assembly of claim 29 wherein said actuator includes a piston driven by an electric motor to an actuated position pressurizing said expandable bladder stabilizer and a return spring acting on said piston to return said piston to an unactuated position. 31. The assembly of claim 29 wherein said actuator may expand said expandable bladder stabilizer to a plurality of predetermined radial positions in said annulus to selectively adjust fluid velocity through areas adjacent said expandable bladder stabilizer. 32. The assembly of claim 31 wherein said expandable bladder stabilizer includes a bladder having metal wear strips. 33. The assembly of claim 31 further including a potentiometer measuring the radial expansion of said expandable bladder stabilizer. 34. The assembly of claim 33 further including a transmitter sending the potentiometer measurements to the surface. 35. The assembly of claim 1 wherein said second cross valve closes flow through said downhole motor in said open position. 36. The assembly of claim 35 wherein said bottom hole assembly includes a central conduit communicating said flow bore with either a BHA conduit communicating with said downhole motor or a branch conduit communicating with ports through a wall of said bottom hole assembly, said second cross valve opening said ports and closing said BHA conduit in said open position and closing said ports and opening said BHA conduit in said closed position. 37. The assembly of claim 36 wherein said second cross valve includes an actuator. 38. The assembly of claim 37 wherein said actuator includes a piston driven by an electric motor between said open position and said closed position. 39. The assembly of claim 36 wherein in said closed position, said surface pumps pump drilling fluid down said second flow path, through said ports, and up said flowbore to remove cuttings. 40. The assembly of claim 1 wherein said bottom hole assembly includes reamer cutters crushing the cuttings generated by said bit. 41. The assembly of claim 40 wherein said reamer cutters are rotatably mounted on said bottom hole assembly and are rotated by frictional engagement with a wall of the borehole. 42. The assembly of claim 1 wherein said bottom hole assembly includes a velocity sensitive check valve. 43. The assembly of claim 42 wherein said velocity sensitive check valve includes a housing with a fluid passageway therethrough; a flapper valve disposed in said fluid passageway; a sleeve reciprocally disposed in said fluid passageway; a flow nozzle disposed in said sleeve; and said sleeve having a first position within said housing holding said flapper valve in an open position and a second position within said housing allowing said flapper valve to close off said fluid passageway. 44. The assembly of claim 43 further including a biasing member biasing said sleeve toward said flapper valve. 45. The assembly of claim 44 wherein said biasing member is a spring housed in an oil-filled chamber around said sleeve. 46. The assembly of claim 43 wherein said flow nozzle is sized whereby a predetermined pressure drop across said flow nozzle overcomes said spring and causes said sleeve to move to said second position. 47. The assembly of claim 43 further including a collet. 48. The assembly of claim 43 wherein said sleeve includes a cage adapted to engage said flapper valve and allow flow through said cage. 49. The assembly of claim 1 wherein said bottom hole assembly further includes a first subsurface pump pumping drilling fluids from said second flow passageway to the surface. 50. The assembly of claim 49 wherein said bottom hole assembly includes an electric motor powering said subsurface pump. 51. The assembly of claim 50 further including power conduits extending from the surface to said electric motor providing electrical power to said electric motor. 52. The assembly of claim 51 wherein said power conduits are embedded in a wall of said coiled tubing. 53. The assembly of claim 49 wherein said bottom hole assembly includes a second subsurface pump pumping drilling fluids through said first fluid passageway into said downhole motor. 54. The assembly of claim 53 wherein said first subsurface pump and said second subsurface pump are driven by a common electric motor. 55. The assembly of claim 53 wherein said first subsurface pump is off and said second subsurface pump is on. 56. The assembly of claim 49 wherein said first subsurface pump is monitored and controlled from the surface. 57. The assembly of claim 50 wherein said electric motor includes a variable speed drive. 58. The assembly of claim 53 wherein said first and second subsurface pumps are monitored and controlled from the surface. 59. The assembly of claim 53 wherein said second subsurface pump is driven by a second electric motor that includes a variable speed drive. 60. The assembly of claim 54 wherein said electric motor includes a variable speed drive. 61. The assembly of claim 50 wherein said bottom hole assembly includes a by-pass passageway extending between said flow bore and said downhole motor, bypassing said subsurface pump; a pump passageway extending between said flow bore and passing through said first subsurface pump and downhole motor; a branch passageway extending from a junction with said pump passageway to ports communicating with said annulus; and a plurality of valves directing flow through said passageways. 62. The assembly of claim 61 further including a conduit passageway for power conduits extending from said subsurface pump to the surface. 63. The assembly of claim 61 wherein each of said plurality of valves operates by opening one of said passageways while closing another one of said passageways. 64. The assembly of claim 61 wherein a first valve is disposed in said by-pass and pump passageways upstream of said junction whereby said first valve opens one of said by-pass and pump passageways while closing the other of said by-pass and pump passageways. 65. The assembly of claim 64 wherein said subsurface pump pumps drilling fluids upwardly through said pump passageway and said flow bore. 66. The assembly of claim 64 wherein said first valve closes said pump passageway and opens said by-pass passageway to direct drilling fluids around said subsurface pump and into said downhole motor. 67. The assembly of claim 64 wherein a second valve is disposed in said pump and branch passageways downstream of said junction whereby said second valve opens one of said pump and branch passageways while closing the other of said pump and branch passageways. 68. The assembly of claim 67 wherein said first valve opens said by-pass passageway and closes said pump passageway and said second valve closes said branch passageway and opens said by-pass passageway to direct drilling fluids into said downhole motor. 69. The assembly of claim 67 wherein said first valve closes said by-pass passageway and opens said pump passageway and said second valve closes said pump passageway and opens said branch passageway to direct drilling fluids from said annulus through said ports to said flow bore to the surface. 70. The assembly of claim 69 wherein said surface pumps pump drilling fluid down said second flow passageway, through said ports and up said flowbore. 71. The assembly of claim 67 wherein said bottom hole assembly includes apertures in a wall thereof downstream of said subsurface pump. 72. The assembly of claim 71 wherein said first valve closes said by-pass passageway and opens said pump passageway and said second valve closes said branch passageway and opens said pump passageway to direct fluids to the surface. 73. The assembly of claim 72 wherein said subsurface pump pumps drilling fluids from said annulus passing through said apertures and upwardly through said flow bore to the surface. 74. The assembly of claim 67 further including a cuttings crushing assembly downstream of said subsurface pump further crushing cuttings prior to passing through said subsurface pump to the surface, said pump passageway passing through said cuttings crushing assembly. 75. The assembly of claim 74 wherein said cuttings crushing assembly includes rotating discs rotating with respect to stationary discs. 76. The assembly of claim 75 wherein said rotating discs have teeth on their outside diameter and stationary discs have teeth on their inside diameter so as to interact and crush the cuttings. 77. The assembly of claim 76 wherein said discs further include increasingly larger holes as they are placed away from said subsurface pump. 78. The assembly of claim 76 wherein there are no gaps between said rotating and stationary discs allowing cuttings to pass therebetween. 79. The assembly of claim 75 wherein said rotating discs are powered by said electric motor. 80. The assembly of claim 79 wherein said electric motor powers both said subsurface pump and said cuttings crushing assembly. 81. The assembly of claim 74 further including apertures in a wall of said bottom hole assembly communicating with said annulus downstream of said cutting crushing assembly. 82. The assembly of claim 81 further including a check valve between said apertures and said downhole motor. 83. The assembly of claim 82 further including a velocity sensitive valve upstream of said check valve. 84. The assembly of claim 1 wherein said bottom hole assembly includes a standard flow subsurface pump capable of pumping drilling fluids into said downhole motor and a reverse flow subsurface pump capable of pumping drilling fluids to the surface. 85. The assembly of claim 84 wherein said standard flow subsurface pump and said reverse flow subsurface pump may operate at the same time. 86. The assembly of claim 84 wherein said standard flow subsurface pump and reverse flow subsurface pump are each driven by an electric motor. 87. The assembly of claim 86 further including a cuttings crushing assembly downstream of said reverse flow subsurface pump further crushing cuttings prior to passing through said reverse flow subsurface pump to the surface. 88. The assembly of claim 87 further comprising apertures in a wall of said bottom hole assembly that communicate with said annulus downstream of said cutting crushing assembly. 89. The assembly of claim 88 further including a check valve between said apertures and said downhole motor. 90. The assembly of claim 86 further including power conduits extending from the surface to said electric motors providing electrical power to said electric motors. 91. The assembly of claim 90 wherein said power conduits are embedded in a wall of said coiled tubing. 92. The assembly of claim 84 wherein said standard flow subsurface pump and reverse flow subsurface pump are driven by a common electric motor. 93. The assembly of claim 86 wherein said electric motors include variable speed drives. 94. The assembly of claim 84 wherein said bottom hole assembly includes apertures through a wall thereof located adjacent said reverse flow subsurface pump and said standard flow subsurface pump. 95. The assembly of claim 94 wherein drilling fluids from the surface flow downwardly through said annulus and into said apertures and wherein drilling fluids with cuttings flow upwardly from said bit, through said flow bore. 96. The assembly of claim 95 further including a cuttings filter in communication with said apertures separating said cuttings from a portion of said drilling fluids forming clean drilling fluids and drilling fluids with cuttings, directing the drilling fluids with cuttings upwardly through said flow bore to the surface and said clean drilling fluids through said standard flow subsurface pump and downhole motor. 97. The assembly of claim 96 wherein said bottom hole assembly includes a by-pass passageway extending through said flow bore, bypassing said reverse flow subsurface pump and said cuttings filter, and passing through said standard flow subsurface pump to said downhole motor; a reverse flow subsurface pump passageway extending between said cuttings filter and passing through said reverse flow subsurface pump to said flow bore; a branch passageway forming a junction with said reverse flow subsurface pump passageway and extending between said reverse flow subsurface-pump passageway and ports through a wall of said bottom hole assembly communicating with said annulus; a standard flow subsurface pump passageway extending from said apertures, through said cuttings filter, and communicating with said by-pass passageway for flow through said standard flow subsurface pump to said downhole motor; and a plurality of valves directing flow through said passageways. 98. The assembly of claim 97 wherein each of said plurality of valves operates by opening one of said passageways while closing another one of said passageways. 99. The assembly of claim 98 wherein a first valve is disposed in said by-pass and reverse flow subsurface pump passageways upstream of said junction whereby said first valve opens one of said by-pass and reverse flow subsurface pump passageways while closing the other of said by-pass and reverse flow subsurface pump passageways. 100. The assembly of claim 99 wherein a second valve is disposed in said reverse flow subsurface pump and branch passageways downstream of said junction whereby said second valve opens one of said reverse flow subsurface pump and branch passageways while closing the other of said reverse flow subsurface pump and branch passageways. 101. The assembly of claim 100 wherein a third valve is disposed in said standard flow subsurface pump and by-pass passageways downstream of said cuttings filter whereby said third valve opens one of said standard flow subsurface pump and by-pass passageways while closing the other of said standard flow subsurface pump and by-pass passageways. 102. The assembly of claim 101 wherein said first cross valve directs fluids down said second passageway, said first valve closes said by-pass passageway and opens said reverse subsurface pump passageway, said second valve closes said branch passageway and opens said reverse subsurface pump passageway, said third valve closes said by-pass passageway and opens said standard flow subsurface pump passageway, such valve arrangement directing drilling fluids down said second passageway, through said apertures, and flowing drilling fluids with cuttings up said reverse subsurface pump passageway, through said reverse subsurface pump, and up said flow bore to the surface and directing fluids with cuttings from said bit, up said annulus, through said apertures, through said cuttings filter and flowing clean drilling fluid down through said standard flow subsurface pump passageway, through said standard flow subsurface pump, and into said downhole motor. 103. The assembly of claim 101 wherein said first cross valve directs fluids down said first passageway, said first valve opens said by-pass passageway and closes said reverse subsurface pump passageway, said second valve opens said branch passageway and closes said reverse subsurface pump passageway, said third valve closes said by-pass passageway and opens said standard flow subsurface pump passageway, such valve arrangement directing drilling fluids down said first passageway, through said by-pass passageway and through said standard flow subsurface pump, and into said downhole motor. 104. The assembly of claim 103 wherein said reverse flow subsurface pump is off. 105. The assembly of claim 101 wherein said first cross valve directs fluids down said second passageway, said first valve closes said by-pass passageway and opens said reverse subsurface pump passageway, said second valve opens said branch passageway and closes said reverse subsurface pump passageway, said third valve opens said by-pass passageway and closes said standard flow subsurface pump passageway, such valve arrangement directing drilling fluids down said second passageway, through said ports, and flowing drilling fluids with cuttings up said branch passageway and up said flow bore to the surface. 106. The assembly of claim 103 wherein said reverse flow subsurface pump and standard flow subsurface pump are off. 107. The assembly of claim 96 wherein said bottom hole assembly includes a reverse flow subsurface pump passageway extending between said cuttings filter and passing through said reverse flow subsurface pump to said flow bore; a branch passageway forming a junction with said reverse flow subsurface pump passageway and extending between said reverse flow subsurface pump passageway and ports through a wall of said bottom hole assembly communicating with said annulus; a standard flow subsurface pump passageway extending from said apertures, through said cuttings filter, and through said standard flow subsurface pump to said downhole motor; and a valve disposed in said reverse flow subsurface pump passageway and branch passageway whereby said valve opens one of said reverse flow subsurface pump and branch passageways while closing the other of said reverse flow subsurface pump and branch passageways. 108. The assembly of claim 107 wherein said first cross valve directs drilling fluids down said second flow passageway, said valve opens said reverse flow subsurface pump passageway and closes said branch passageway such valve arrangement directing drilling fluids down said second passageway, through said apertures, and flowing drilling fluids with cuttings up said reverse subsurface pump passageway, through said reverse subsurface pump, and up said flow bore to the surface and directing fluids with cuttings from said bit, up said annulus, through said apertures, through said cuttings filter and flowing clean drilling fluid down through said standard flow subsurface pump passageway, through said standard flow subsurface pump, and into said downhole motor. 109. The assembly of claim 108 wherein said reverse flow subsurface pump and standard flow subsurface pump are both in operation. 110. The assembly of claim 107 wherein said first cross valve directs drilling fluids down said first flow passageway, said valve closes said reverse flow subsurface pump passageway and opens said branch passageway such valve arrangement directing drilling fluids down said first flow passageway, through said branch passageway, through said ports, and flowing drilling fluids with cuttings up said annulus to the surface. 111. The assembly of claim 107 wherein said first cross valve directs drilling fluids down said second flow passageway, said valve closes said reverse flow subsurface pump passageway and opens said branch passageway such valve arrangement directing drilling fluids down said second flow passageway, through said ports, through said branch passageway, and flowing drilling fluids with cuttings up said flow bore to the surface. 112. The assembly of claim 107 further including a cuttings crushing assembly downstream of said reverse flow subsurface pump further crushing cuttings prior to passing through said reverse flow subsurface pump to the surface. 113. The assembly of claim 112 wherein said cuttings crushing assembly includes concentric rotating cutters. 114. The assembly of claim 112 wherein said cuttings crushing assembly includes eccentric rotating cutters that rotate and gyrate. 115. The assembly of claim 112 wherein said cuttings crushing assembly includes cutters positioned on a disc and rotate relative to one another in a four point pattern. 116. The assembly of claim 100 wherein said first cross valve directs fluids down said second passageway, said first valve closes said by-pass passageway and opens said reverse subsurface pump passageway, said second valve closes said branch passageway and opens said reverse subsurface pump passageway, such valve arrangement directing drilling fluids down said second passageway, through said apertures, and flowing drilling fluids with cuttings up said reverse subsurface pump passageway, through said reverse subsurface pump, and up said flow bore to the surface and directing fluids with cuttings from said bit, up said annulus, through said apertures, through said cuttings filter and flowing clean drilling fluid down through said standard flow subsurface pump passageway, through said standard flow subsurface pump, and into said downhole motor. 117. The assembly of claim 116 wherein said reverse subsurface pump and said standard flow subsurface pump being driven by a common electric motor. 118. The assembly of claim 116 wherein said reverse subsurface pump is off and said standard flow subsurface pump is on, said surface pumps providing fluid flow for reverse circulation. 119. The assembly of claim 116 wherein said bottom hole assembly includes a check valve up stream of said downhole motor. 120. The assembly of claim 1 wherein said bottom hole assembly includes apertures through a wall thereof upstream of a subsurface pump. 121. The assembly of claim 120 wherein drilling fluids from the surface flow downwardly through said second flow passageway and into said apertures and wherein drilling fluids with cuttings flow upwardly from said bit, through said annulus and into said apertures. 122. The assembly of claim 120 further including a cuttings filter in communication with said apertures separating said drilling fluids into clean drilling fluids and drilling fluids with cuttings and directing the drilling fluids with cuttings upwardly through said flow bore to the surface and said clean drilling fluids through said subsurface pump and downhole motor. 123. The assembly of claim 122 wherein said bottom hole assembly includes a by-pass passageway extending through said flow bore, bypassing said cuttings filter, and passing through said subsurface pump to said downhole motor; an upstream pump passageway extending from said cuttings filter to said flow bore; a downstream pump passageway extending from said apertures, through said cuttings filter, and through said subsurface pump to said downhole motor; and a valve disposed in said upstream pump and by-pass passageways whereby said valve opens one of said upstream pump and by-pass passageways while closing the other of said upstream pump and by-pass passageways. 124. The assembly of claim 123 wherein said first cross valve directs fluids down said second passageway, said valve closes said by-pass passageway and opens said upstream pump passageway, such valve arrangement directing drilling fluids down said second passageway, through said apertures, and flowing drilling fluids with cuttings up said upstream pump passageway, and up said flow bore to the surface and directing fluids with cuttings from said bit, up said annulus, through said apertures, through said cuttings filter and flowing clean drilling fluid down through said downstream pump passageway, through said subsurface pump, and into said downhole motor. 125. The assembly of claim 120 wherein said surface pump may pump either down said first flow passageway or down said second flow passageway to remove cuttings. 126. The assembly of claim 122 further including a check valve disposed between said subsurface pump and said downhole motor. 127. The assembly of claim 126 wherein said valve closes said by-pass passageway and opens said pump passageway and said surface pump removing cuttings by reverse flow through said second flow passageway. 128. The assembly of claim 123 wherein said first cross valve directs fluids down said first passageway, said valve opens said by-pass passageway and closes said upstream pump passageway, such valve arrangement directing drilling fluids down said first passageway, through said by-pass passageway, and by-passing said subsurface pump and flowing drilling fluids to said downhole motor. 129. The assembly of claim 126 wherein said valve opens said by-pass passageway and closes said upstream pump passageway to remove cuttings and drill with said subsurface pump off. 130. The assembly of claim 1 wherein said bottom hole assembly includes apertures through a wall thereof upstream of a subsurface pump and adjacent a cuttings filter in communication with said apertures separating said drilling fluids flowing into said apertures into clean drilling fluids and drilling fluids with cuttings and directing the drilling fluids with cuttings upwardly through said flow bore to the surface and said clean drilling fluids through said cuttings filter and subsurface pump to said downhole motor. 131. The assembly of claim 130 wherein said first flow passageway extends through said cuttings filter, said subsurface pump, said downhole motor and said bit. 132. The assembly of claim 131 wherein said surface pumps pump drilling fluids down said first flow passageway and up said annulus with a portion flowing through said apertures and into said first flow passageway. 133. The assembly of claim 130 wherein said surfaces pumps pump drilling fluids down said second flow passageway and through said apertures with a portion of the drilling fluids flowing up said flow bore and a portion flowing down through said cuttings filter, said subsurface pump, said downhole motor and said bit. 134. The assembly of claim 130 wherein said bottom hole assembly includes an upstream pump passageway extending from said cuttings filter to said flow bore; and a downstream pump passageway extending from said apertures, through said cuttings filter, and through said subsurface pump to said downhole motor. 135. The assembly of claim 134 wherein said first cross valve directs fluids down said first flow passageway and down said upstream pump passageway and through said subsurface pump to said downhole motor and bit and flowing drilling fluids with cuttings up said annulus with a portion flowing into said apertures and a portion flowing to the surface. 136. The assembly of claim 134 wherein said first cross valve directs fluids down said second flow passageway and into said apertures with said cuttings filter separating said drilling fluids flowing into said apertures into clean drilling fluids and drilling fluids with cuttings and directing the drilling fluids with cuttings upwardly through said flow bore to the surface and said clean drilling fluids through said cuttings filter and subsurface pump to said downhole motor. 137. The assembly of claim 1 wherein said bottom hole assembly includes apertures through a wall thereof upstream of a subsurface pump and adjacent a first cuttings filter in communication with said apertures separating said drilling fluids flowing into said apertures into clean drilling fluids and drilling fluids with cuttings and directing the drilling fluids with cuttings upwardly through said flow bore to the surface and said clean drilling fluids through said subsurface pump and downhole motor, said bottom hole assembly further including a second cuttings filter upstream of said first cuttings filter. 138. The assembly of claim 137 wherein said bottom hole assembly includes an upstream pump passageway extending from said second cuttings filter to said flow bore; and a downstream pump passageway extending from said apertures, through said first cuttings filter, and through said subsurface pump to said downhole motor, a by-pass passageway extending from said flowbore and through said second cuttings filter and by-passing said subsurface pump; and a first check valve disposed in said by-pass passageway upstream of said downhole motor and a second check valve in said downstream pump passageway upstream of said downhole motor. 139. The assembly of claim 138 wherein said first cross valve directs fluids down said first passageway and down said upstream pump passageway and through said subsurface pump to said downhole motor and bit and flowing drilling fluids with cuttings up said annulus with a portion flowing into said apertures and a portion flowing to the surface. 140. The assembly of claim 138 wherein said first cross valve directs fluids down said second passageway and into said apertures with said first cuttings filter separating said drilling fluids flowing into said apertures into clean drilling fluids and drilling fluids with cuttings and directing the drilling fluids with cuttings upwardly through said flow bore to the surface, and said clean drilling fluids through said cuttings filter and subsurface pump to said downhole motor. 141. The assembly of claim 138 wherein said first check valve is closed and said second check valve is open whereby said downstream pump passageway communicates with said by-pass passageway, said surface pumps pumping drilling fluids down said first flow passageway and through said by-pass passageway and into said downstream pump passageway and through said subsurface pump pumping said drilling fluids through said first cuttings filter. 142. The assembly of claim 138 wherein said drilling fluids pass through said second cuttings filter as said drilling fluids are pumped uphole. 143. The assembly of claim 142 wherein said first check valve is closed and said second check valve is open whereby said downstream pump passageway communicates with said by-pass passageway, said surface pumps pumping drilling fluids down said second flow passageway and through said apertures, a portion of the drilling fluids flowing through said second cuttings filter and into said by-pass passageway for flow through said subsurface pump and a portion flowing through said upstream pump passageway to the surface.
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