CN113863857A - Drilling tool assembly for drifting and logging one-trip drilling of horizontal well and one-trip drilling method - Google Patents
Drilling tool assembly for drifting and logging one-trip drilling of horizontal well and one-trip drilling method Download PDFInfo
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- CN113863857A CN113863857A CN202110064142.4A CN202110064142A CN113863857A CN 113863857 A CN113863857 A CN 113863857A CN 202110064142 A CN202110064142 A CN 202110064142A CN 113863857 A CN113863857 A CN 113863857A
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- 238000005553 drilling Methods 0.000 title claims abstract description 66
- 238000000034 method Methods 0.000 title claims abstract description 22
- 238000001514 detection method Methods 0.000 claims abstract description 100
- 238000009966 trimming Methods 0.000 claims abstract description 79
- 230000007704 transition Effects 0.000 claims description 24
- 230000003750 conditioning effect Effects 0.000 claims description 7
- 230000036346 tooth eruption Effects 0.000 claims description 7
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
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- 238000007790 scraping Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B7/00—Special methods or apparatus for drilling
- E21B7/04—Directional drilling
- E21B7/046—Directional drilling horizontal drilling
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B10/00—Drill bits
- E21B10/42—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits
- E21B10/43—Rotary drag type drill bits with teeth, blades or like cutting elements, e.g. fork-type bits, fish tail bits characterised by the arrangement of teeth or other cutting elements
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B47/00—Survey of boreholes or wells
Abstract
The invention provides a drilling tool assembly for one trip of drilling for drifting and logging of a horizontal well and a method for one trip of drilling, wherein the drilling tool assembly comprises a trimming unit and a detection unit, the trimming unit comprises a trimming structure, the trimming structure is used for cutting a bulge on the wall of the horizontal well, and the trimming unit is provided with a via hole structure; the detection unit comprises a detection structure, the first end of the detection structure penetrates out of the via hole structure and reaches the bottom position of the horizontal well, and the second end of the detection structure is connected with the trimming unit; when the secondary tripping operation is carried out on the trimming unit, the trimming unit drives the detection structure to move from the bottom of the horizontal well to the wellhead of the horizontal well, and the detection structure carries out logging operation on the horizontal well on the moving path of the detection structure. The invention solves the problem of lower efficiency of well completion operation in the prior art.
Description
Technical Field
The invention relates to the technical field of oil and gas development equipment, in particular to a drilling tool assembly for one trip drilling of drifting and logging of a horizontal well and a one trip drilling method.
Background
In the process of drilling operation, a drilling device is required to be used for drilling to a preset well depth, then the horizontal well drilled to the preset well depth is subjected to drifting operation, and the drifting operation is to cut a protruding object on the well wall of the horizontal well, so that the well is ensured to be clean and smooth, and the subsequent well logging operation and casing operation are performed on the horizontal well conveniently. However, in the prior art, a conventional 5000-meter horizontal well at least needs to carry out two drifting operations, and needs to carry out one logging operation after the two drifting operations are finished, and the finished period needs about 7-10 days, so that the drilling period is long, and the efficiency of well completion operation cannot be ensured.
Disclosure of Invention
The invention mainly aims to provide a drilling tool assembly for drifting and logging one-trip drilling of a horizontal well and a one-trip drilling method, so as to solve the problem that the efficiency of well completion operation in the prior art is low.
In order to achieve the above object, according to one aspect of the present invention, there is provided a drilling tool assembly for drifting and logging one trip drilling of a horizontal well, comprising a dressing unit and a detection unit, wherein the dressing unit comprises a dressing structure for cutting projections on a wall of the horizontal well, and the dressing unit has a via hole structure; the detection unit comprises a detection structure, the first end of the detection structure penetrates out of the via hole structure and reaches the bottom position of the horizontal well, and the second end of the detection structure is connected with the trimming unit; when the secondary tripping operation is carried out on the trimming unit, the trimming unit drives the detection structure to move from the bottom of the horizontal well to the wellhead of the horizontal well, and the detection structure carries out logging operation on the horizontal well on the moving path of the detection structure.
Further, the trimming structure comprises a first cutting tool, the first cutting tool is provided with a first avoidance through hole, the trimming unit further comprises a drill rod structure, the drill rod structure extends along the length direction of the horizontal well, the first end of the first cutting tool is connected with the drill rod structure and is positioned at one end, close to the bottom of the horizontal well, of the drill rod structure, the drill rod structure is provided with a second avoidance through hole, the second avoidance through hole extends along the length direction of the drill rod structure, and the second avoidance through hole is communicated with the first avoidance through hole to form a through hole structure; the first end of the detection structure sequentially penetrates through the second avoidance through hole and the first avoidance through hole and reaches the bottom position of the horizontal well, and the second end of the detection structure is connected with the second end of the first cutting tool.
Furthermore, the second end of the detection structure is provided with a lap joint flanging, the second end of the first cutting tool is provided with a stop flanging, and the detection structure is overlapped on the stop flanging through the lap joint flanging to be connected with the first cutting tool.
Furthermore, the stop flange is an annular flange, and the annular flange is formed on the wall surface of the first avoidance through hole.
Further, the first cutting tool comprises a first assembling shaft and a first cutting blade, wherein the first end of the first assembling shaft is connected with the drill rod structure, the first assembling shaft is provided with a first avoiding through hole, and the first avoiding through hole extends along the axial direction of the first assembling shaft; the first cutting blade is arranged on the circumferential outer surface of the second end of the first assembling shaft, the first cutting blade extends along the axial direction of the first assembling shaft, and one end, far away from the drill rod structure, of the first cutting blade is provided with first cutting teeth.
Further, first assembly shaft includes first assembly shaft section, first transition shaft section and the first cutting shaft section that connects in proper order along the direction of keeping away from the drilling rod structure, and wherein, first assembly shaft section is connected with the joint design of drilling rod structure tip, and first transition shaft section is used for connecting first assembly shaft section and first cutting shaft section, is provided with first cutting wing on the circumference surface of first cutting shaft section.
Further, the first diameter of the first assembling shaft section is R1, the second diameter of the first transition shaft section is R2, and the third diameter of the first cutting shaft section is R3, wherein R1 is R3 is R2.
Further, the area of the cross section of the first stub shaft section is arranged gradually increasing in a direction close to the first transition shaft section.
Further, the first cutting blade is a plurality of, and a plurality of first cutting blade are set up around the circumference surface of first cutting shaft section at interval.
Further, the drill rod structure comprises a plurality of drill rod sections, the drill rod sections are connected, the trimming structure further comprises a second cutting tool, the second cutting tool is provided with a third avoiding through hole, the third avoiding through hole is communicated with the second avoiding through hole, and the second cutting tool is located between two adjacent drill rod sections in the drill rod sections.
Further, the second cutting tool comprises a second assembling shaft and a second cutting blade, wherein the first end of the second assembling shaft is connected with one of the two adjacent drill rod sections, and the second end of the second assembling shaft is connected with the other of the two adjacent drill rod sections; the second cutting blades are arranged on the circumferential outer surface of the second assembling shaft, and the extending direction of the second cutting blades is arranged in a mode of forming an included angle with the axis of the second assembling shaft.
Furthermore, the second assembling shaft comprises a second assembling shaft section, a second transition shaft section, a second cutting shaft section and a third assembling shaft section which are sequentially connected in the direction far away from the first cutting tool, wherein the second assembling shaft section is used for being connected with one of two adjacent drill rod sections, the second transition shaft section is used for being connected with the second assembling shaft section and the second cutting shaft section, a second cutting blade is arranged on the circumferential outer surface of the second cutting shaft section, and the third assembling shaft section is used for being connected with the other of the two adjacent drill rod sections.
Furthermore, the second assembling shaft section, the second transition shaft section and the third assembling shaft section are coaxially arranged, the axis of the second cutting shaft section is parallel to the axis of the third assembling shaft section, and the axis of the second cutting shaft section deviates from the axis of the third assembling shaft section by a first preset distance.
Further, the second cutting blade includes a first sub-cutting blade and a second sub-cutting blade, the first sub-cutting blade and the second sub-cutting blade are disposed at an interval in an axial direction of the second cutting shaft section, a first end of the first sub-cutting blade has the second cutting teeth, a first end of the second sub-cutting blade has the third cutting teeth, and a second end of the first sub-cutting blade and a second end of the second sub-cutting blade are disposed opposite to each other.
Further, the first sub-cutting blade extends along a first direction, the second sub-cutting blade extends along a second direction, wherein the first direction and the second direction are both arranged at an angle to an axis of the second cutting shaft section, and the first direction and the second direction are symmetrically arranged about a gap between a second end of the first sub-cutting blade and a second end of the second sub-cutting blade, so that the first sub-cutting blade and the second sub-cutting blade form a V-shaped structure.
Further, the second cutting blade is a plurality of, and a plurality of second cutting blades are set up around the circumferential outer surface of second cutting shaft section at interval.
Further, the second cutting tool is a plurality of second cutting tools, and one second cutting tool is arranged between every two adjacent drill rod sections in the plurality of drill rod sections.
According to another aspect of the present invention, there is provided a method for drifting and logging one trip of a horizontal well, wherein a drilling tool assembly for drifting and logging one trip of the horizontal well is used for drilling the horizontal well, the drilling tool assembly is the above-mentioned drilling tool assembly, and the method for drifting and logging one trip of the horizontal well comprises the following steps: putting a trimming unit of the drilling tool assembly into the horizontal well, and cutting a bulge on the well wall of the horizontal well by a trimming structure of the trimming unit to finish the drifting operation; the detection structure of the detection unit is conveyed into the horizontal well through the via hole structure of the trimming unit, the first end of the detection structure penetrates out of the via hole structure and reaches the bottom position of the horizontal well, when secondary tripping operation is carried out on the trimming unit, the trimming unit drives the detection structure to move from the bottom of the horizontal well to the wellhead of the horizontal well, and the detection structure carries out logging operation on the horizontal well on the moving path of the detection structure.
Further, after the drifting operation of the trimming unit is completed and before the detection structure enters the horizontal well through the via structure, the method for drifting and logging in one trip further comprises the following steps: and carrying out primary tripping operation on the trimming unit, wherein the trimming unit is a second preset distance away from the bottom of the horizontal well so as to reserve a penetrating space for the detection structure.
By applying the technical scheme of the invention, the drilling tool assembly for drifting and logging of the horizontal well comprises the trimming unit and the detection unit, so that the trimming unit is lowered into the horizontal well, and a trimming structure of the trimming unit cuts a bulge on the well wall of the horizontal well to finish the drifting operation; and then the detection structure of the detection unit is conveyed into the horizontal well through the via hole structure of the trimming unit, the first end of the detection structure penetrates out of the via hole structure and reaches the bottom position of the horizontal well, when the trimming unit is subjected to secondary tripping operation, the trimming unit drives the detection structure to move from the bottom of the horizontal well to the wellhead of the horizontal well, the detection structure performs logging operation on the horizontal well on the moving path of the detection structure, the drilling tool assembly is ensured to enter the horizontal well only once, the drifting operation and the logging operation can be completed, and the efficiency of the well completion operation of the horizontal well is greatly improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 shows a schematic flow diagram of a method of drifting and logging a trip of a horizontal well according to an alternative embodiment of the invention;
FIG. 2 illustrates a partial schematic view of a drifting and logging drill assembly of a single trip of a horizontal well performing a drifting operation and a logging operation in accordance with an alternative embodiment of the present invention;
FIG. 3 illustrates a schematic diagram of a portion of a drill assembly for a trip and logging of a horizontal well according to an alternative embodiment of the present invention;
FIG. 4 shows a schematic view of a first cutting tool of the conditioning structure of the conditioning unit of the drilling assembly of the drift and logging trip of the horizontal well of FIG. 3;
FIG. 5 shows a schematic view of another perspective of the first cutting tool of FIG. 4;
FIG. 6 shows a schematic view of a second cutting tool of the conditioning structure of the conditioning unit of the drilling assembly of the drift and logging trip of the horizontal well of FIG. 3;
fig. 7 shows a schematic view of another perspective of the second cutting tool of fig. 6.
Wherein the figures include the following reference numerals:
1. horizontal wells;
10. a trimming unit; 11. trimming the structure; 111. a first cutting tool; 1111. a first avoidance via; 1112. a first assembly shaft; 1112a, a first assembly shaft segment; 1112b, a first transition shaft segment; 1112c, a first cutting spindle section; 1113. a first cutting blade; 100. a first cutting tooth; 112. a second cutting tool; 1121. a third avoidance via; 1122. a second assembly shaft; 1122a, a second assembled shaft segment; 1122b, a second transition shaft segment; 1122c, a second cutting spindle section; 1122d, a third assembled shaft segment; 1123. a second cutting blade; 1123a, a first sub-cutting blade; 1123b, a second sub-cutting blade; 200. a second cutting tooth; 300. a third cutting tooth; 12. a drill rod structure; 121. a drill pipe section; 13. a joint structure;
20. a detection unit; 21. and detecting the structure.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In order to solve the problem of low efficiency of well completion operation in the prior art, the invention provides a drilling tool assembly for one trip of drilling for drifting and logging of a horizontal well and a method for one trip of drilling.
As shown in fig. 1, the method for drifting and logging one trip drilling of a horizontal well refers to performing drilling operation on the horizontal well 1 by using a drilling tool assembly for drifting and logging one trip drilling of the horizontal well, wherein the drilling tool assembly is the drilling tool assembly described above and below, and the method for drifting and logging one trip drilling comprises the following steps: lowering a trimming unit 10 of the drilling tool assembly into the horizontal well 1, and cutting a bulge on the well wall of the horizontal well 1 by a trimming structure 11 of the trimming unit 10 to complete drifting operation; the detection structure 21 of the detection unit 20 is sent into the horizontal well 1 through the via hole structure of the trimming unit 10, the first end of the detection structure 21 penetrates out of the via hole structure and reaches the bottom position of the horizontal well 1, when the trimming unit 10 is subjected to secondary tripping operation, the trimming unit 10 drives the detection structure 21 to move from the bottom of the horizontal well 1 to the wellhead of the horizontal well 1, and the detection structure 21 performs logging operation on the horizontal well 1 on the moving path of the detection structure 21.
As shown in fig. 1, after the workover operation is completed by the workover unit 10 and before the detection structure 21 enters the horizontal well 1 through the via structure, the method of one trip of well logging further comprises the following steps: and carrying out one-time tripping operation on the trimming unit 10, wherein the trimming unit 10 is a second preset distance away from the bottom of the horizontal well 1 so as to reserve a penetrating space for the detection structure 21.
Optionally, the length of the exit space is greater than or equal to the length of the detection structure 21.
As shown in fig. 2 and 3, the drilling tool assembly comprises a trimming unit 10 and a detection unit 20, wherein the trimming unit 10 comprises a trimming structure 11, the trimming structure 11 is used for cutting a bulge on the wall of the horizontal well 1, and the trimming unit 10 is provided with a via hole structure; the detection unit 20 comprises a detection structure 21, a first end of the detection structure 21 penetrates out of the via hole structure and reaches the bottom position of the horizontal well 1, and a second end of the detection structure 21 is connected with the trimming unit 10; when the trimming unit 10 is subjected to secondary tripping operation, the trimming unit 10 drives the detection structure 21 to move from the bottom of the horizontal well 1 to the wellhead of the horizontal well 1, and the detection structure 21 performs logging operation on the horizontal well 1 on the moving path of the detection structure.
The application provides a drilling tool assembly comprising a trimming unit 10 and a detection unit 20, so that the trimming unit 10 is lowered into a horizontal well 1, and a trimming structure 11 of the trimming unit 10 cuts a bulge on the wall of the horizontal well 1 to complete drifting; and then, the detection structure 21 of the detection unit 20 is sent into the horizontal well 1 through the via hole structure of the trimming unit 10, the first end of the detection structure 21 penetrates out of the via hole structure and reaches the bottom position of the horizontal well 1, when the trimming unit 10 is subjected to secondary tripping operation, the trimming unit 10 drives the detection structure 21 to move from the bottom of the horizontal well 1 to the wellhead of the horizontal well 1, the detection structure 21 carries out logging operation on the horizontal well 1 on the moving path of the detection structure, it is ensured that the drilling tool assembly can complete the well dredging operation and the logging operation only by entering the horizontal well 1 for one trip, and the efficiency of the well completion operation of the horizontal well 1 is greatly improved.
As shown in fig. 2, the drill assembly is partially schematic for performing drifting and logging operations, and a in fig. 2 indicates: the trimming unit 10 is put into the horizontal well 1, segmented pump-opening circulating drifting operation is carried out, and the drifting operation is completed on the premise that the well bottom is reached and the well bore of the horizontal well 1 is ensured to be smooth; b in fig. 2 represents: after the drifting operation is finished, once tripping is carried out to lift the trimming unit 10 to a second preset distance away from the bottom of the well, so that a penetrating space is reserved for the detection structure 21; c in fig. 2 represents: pumping the detection structure 21 downhole from the via structure of the dressing unit 10 such that a first end of the detection structure 21 reaches the bottom of the well, while a second end of the detection structure 21 is connected to the dressing unit 10; d in fig. 2 represents: and (3) driving the detection structure 21 to move to carry out logging operation by the trimming unit 10 while carrying out secondary tripping, taking out the drilling tool assembly from the horizontal well 1 when the logging operation is finished, and then putting a casing pipe into the horizontal well 1 to ensure the well wall regularity of the horizontal well 1.
As shown in fig. 2 to 5, the trimming structure 11 includes a first cutting tool 111, the first cutting tool 111 has a first bypass via 1111, the trimming unit 10 further includes a drill rod structure 12, the drill rod structure 12 extends along the length direction of the horizontal well 1, a first end of the first cutting tool 111 is connected to the drill rod structure 12 and is located at one end of the drill rod structure 12 close to the bottom of the horizontal well 1, the drill rod structure 12 has a second bypass via, the second bypass via extends along the length direction of the drill rod structure 12, and the second bypass via is communicated with the first bypass via 1111 to form a via structure; the first end of the detection structure 21 sequentially passes through the second avoidance through hole and the first avoidance through hole 1111 and reaches the bottom position of the horizontal well 1, and the second end of the detection structure 21 is connected with the second end of the first cutting tool 111. In this way, the first end of the detection structure 21 can smoothly reach the bottom position of the horizontal well 1, so that the detection reliability of the detection structure 21 on the horizontal well 1 is ensured, in addition, the second end of the detection structure 21 is connected with the second end of the first cutting tool 111, the detection structure 21 can be prevented from falling at the bottom of the horizontal well 1, meanwhile, when secondary tripping is ensured, the trimming unit 10 drives the detection structure 21 to move from the bottom of the horizontal well 1 to the wellhead of the horizontal well 1, and logging operation is carried out on the horizontal well 1.
It should be noted that, in the present application, the detection of the horizontal well 1 by the detection structure 21 includes detecting formation information, detecting a diameter of a borehole of the horizontal well 1, and the like, the detection unit 20 further includes a receiving device, the receiving device is in signal connection with the detection structure 21, the receiving device is disposed on the ground, and the receiving device is configured to receive the detection information of the detection structure 21, and send the received detection information to the display device to inform an operator of the detection information of the horizontal well 1, so that the operator can prepare for subsequent casing running.
Optionally, the second end of the detecting structure 21 has a lap-joint flange, the second end of the first cutting tool 111 has a stop flange, and the detecting structure 21 is overlapped on the stop flange by the lap-joint flange to be connected with the first cutting tool 111. In this way, the reliability of the connection of the detection structure 21 and the first cutting tool 111 is ensured.
Optionally, the stop flange is an annular flange, and the annular flange is formed on the hole wall surface of the first avoidance through hole 1111.
Of course, the stop flange may also include a plurality of arc flanges, and the plurality of arc flanges are disposed on the hole wall surface of the first avoidance through hole 1111 at intervals.
As shown in fig. 2 to 5, the first cutting tool 111 includes a first mounting shaft 1112 and a first cutting blade 1113, a first end of the first mounting shaft 1112 is connected to the drill rod structure 12, the first mounting shaft 1112 has a first bypass through hole 1111, and the first bypass through hole 1111 extends in an axial direction of the first mounting shaft 1112; the first cutting blade 1113 is disposed on the circumferential outer surface of the second end of the first mounting shaft 1112, the first cutting blade 1113 extends in the axial direction of the first mounting shaft 1112, and the end of the first cutting blade 1113 facing away from the rod assembly 12 has a first cutting tooth 100. In this way, by arranging the first cutting tool 111 in a structural form including the first assembling shaft 1112 and the first cutting blade 1113, it is ensured that the first assembling shaft 1112 drives the first cutting blade 1113 to rotate so as to cut off the projections on the wall of the horizontal well 1.
As shown in fig. 2 to 5, the first assembling shaft 1112 sequentially includes a first assembling shaft segment 1112a, a first transition shaft segment 1112b and a first cutting shaft segment 1112c connected in a direction away from the drill rod structure 12, wherein the first assembling shaft segment 1112a is connected to the joint structure 13 at the end of the drill rod structure 12, the first transition shaft segment 1112b is used for connecting the first assembling shaft segment 1112a and the first cutting shaft segment 1112c, and a first cutting wing 1113 is disposed on a circumferential outer surface of the first cutting shaft segment 1112 c.
Alternatively, the first diameter of the first mounting shaft segment 1112a is R1, the second diameter of the first transition shaft segment 1112b is R2, and the third diameter of the first cutting shaft segment 1112c is R3, wherein R1R 3R 2. In this way, the relationship among the first diameter R1, the second diameter R2 and the third diameter R3 is optimized to ensure the connection reliability between the first assembling shaft segment 1112a and the joint structure 13 at the end of the drill rod structure 12 while ensuring the sufficient structural strength of the first assembling shaft 1112, and in addition, after the first cutting blade 1113 is installed on the circumferential outer surface of the first cutting shaft segment 1112c, the first cutting teeth 100 on the first cutting blade 1113 can protrude out of the outer surface of the first transition shaft segment 1112b, thereby ensuring that the first cutting teeth 100 can cut the protrusion on the wall of the horizontal well 1.
Alternatively, the first diameter R1, the second diameter R2, and the third diameter R3 all refer to the outer diameters, and the second diameter R2 of the first transition shaft segment 1112b is equal to the outer diameter of the coupling structure 13.
As shown in fig. 4, the cross-sectional area of the first mounting shaft segment 1112a is disposed progressively larger in a direction approaching the first transition shaft segment 1112 b. In this way, the first assembly shaft segment 1112a is connected in a plug-in manner to the coupling arrangement 13 at the end of the drill rod structure 12.
Optionally, the first plurality of cutting blade wings 1113 is provided in plurality, with the plurality of first cutting blade wings 1113 being disposed at intervals about the circumferential outer surface of the first cutting shaft segment 1112 c. In this way, the plurality of first cutting blades 1113 operate simultaneously to cut off the projections on the wall of the horizontal well 1, thereby improving the cutting efficiency of the first cutting tool 111 while ensuring the cutting reliability of the first cutting tool 111.
As shown in fig. 2 and 3, the drill rod structure 12 includes a plurality of drill rod sections 121, the plurality of drill rod sections 121 are connected, the trimming structure 11 further includes a second cutting tool 112, the second cutting tool 112 has a third bypass hole 1121, and the third bypass hole 1121 is communicated with the second bypass hole, and the second cutting tool 112 is located between two adjacent drill rod sections 121 in the plurality of drill rod sections 121. In this way, it is ensured that the second cutting tool 112 and the first cutting tool 111 work simultaneously with the rotation of the drill rod structure 12, which is advantageous for improving the cutting efficiency of the dressing unit 10.
Optionally, the second cutting tool 112 is a micro-reaming tool, further eliminating irregular wellbores.
As shown in fig. 2, 3, 6 and 7, the second cutting tool 112 includes a second mounting shaft 1122 and a second cutting blade 1123, wherein a first end of the second mounting shaft 1122 is connected to one of the two adjacent drill pipe segments 121 and a second end of the second mounting shaft 1122 is connected to the other of the two adjacent drill pipe segments 121; the second cutting blades 1123 are disposed on a circumferential outer surface of the second mounting shaft 1122, and the extending direction of the second cutting blades 1123 is disposed at an angle to the axis of the second mounting shaft 1122. In this way, the second cutting blade 1123 is made to be a spiral blade, which is convenient for scraping the projections on the wall of the horizontal well 1.
As shown in fig. 2, 3, 6 and 7, the second mounting shaft 1122 includes a second mounting shaft segment 1122a, a second transition shaft segment 1122b, a second cutting shaft segment 1122c and a third mounting shaft segment 1122d connected in sequence in a direction away from the first cutting tool 111, wherein the second mounting shaft segment 1122a is used for connecting with one of the two adjacent drill rod segments 121, the second transition shaft segment 1122b is used for connecting the second mounting shaft segment 1122a with the second cutting shaft segment 1122c, a second cutting wing 1123 is disposed on a circumferential outer surface of the second cutting shaft segment 1122c, and the third mounting shaft segment 1122d is used for connecting with the other of the two adjacent drill rod segments 121.
Alternatively, the second, and third assembly shaft segments 1122a, 1122b, and 1122d are coaxially disposed, the axis of the second cutting shaft segment 1122c is parallel to the axis of the third assembly shaft segment 1122d, and the axis of the second cutting shaft segment 1122c is offset from the axis of the third assembly shaft segment 1122d by a first predetermined distance. In this way, on the premise of ensuring that the second mounting shaft 1122 has sufficient structural strength, the axis of the second cutting shaft segment 1122c is eccentrically processed with respect to the third mounting shaft segment 1122d, which is advantageous in increasing the cutting range of the second cutting blade 1123 during rotation of the second mounting shaft 1122, thereby ensuring cutting reliability of the second cutting tool 112.
As shown in fig. 2, 3, 6, and 7, the second cutting blade 1123 includes a first sub-cutting blade 1123a and a second sub-cutting blade 1123b, the first sub-cutting blade 1123a and the second sub-cutting blade 1123b being disposed at intervals in the axial direction of the second cutting shaft section 1122c, a first end of the first sub-cutting blade 1123a having the second cutting tooth 200, a first end of the second sub-cutting blade 1123b having the third cutting tooth 300, and a second end of the first sub-cutting blade 1123a and a second end of the second sub-cutting blade 1123b being disposed opposite to each other. In this way, it is ensured that the first sub-cutting blade 1123a and the second sub-cutting blade 1123b can be operated simultaneously, thereby cutting a protrusion at different positions on the wall of the horizontal well 1.
As shown in fig. 2, 3, 6, and 7, the first sub-cutting blade 1123a is disposed to extend in a first direction, and the second sub-cutting blade 1123b is disposed to extend in a second direction, wherein the first direction and the second direction are both disposed at an angle to the axis of the second cutting shaft segment 1122c, and the first direction and the second direction are symmetrically disposed with respect to a gap between the second end of the first sub-cutting blade 1123a and the second end of the second sub-cutting blade 1123b, so that the first sub-cutting blade 1123a and the second sub-cutting blade 1123b constitute a V-shaped structure. Therefore, the fact that the second cutting blade 1123 in the V-shaped structure can stir drilling fluid in the horizontal well 1 to generate turbulent flow in the rotating process is guaranteed, cut detritus particles are resuspended and are discharged along with the drilling fluid, and in addition, the second cutting blade 1123 in the V-shaped structure can also scrape detritus beds on the well wall of the horizontal well, and therefore the well hole purifying effect of the horizontal well 1 is achieved.
Optionally, the second cutting blades 1123 are multiple, with a plurality of second cutting blades 1123 disposed at intervals around the circumferential outer surface of the second cutting shaft segment 1122 c. In this way, the plurality of second cutting blades 1123 operate simultaneously, which is advantageous for improving the operational reliability of the second cutting tool 112.
Optionally, the second cutting tool 112 is a plurality, and one second cutting tool 112 is disposed between each adjacent two of the plurality of drill pipe segments 121. In this way, it is ensured that the plurality of second cutting tools 112 can cut the projections on the well wall at different positions in the longitudinal direction of the horizontal well 1.
It should be noted that, in the present application, compared with the existing methods of drifting and logging operations, the method of one trip drilling for the drifting operation and logging operation of the horizontal well 1 provided by the present application greatly reduces the operation time, the existing drifting operation and logging operation require at least three trips in total, the total operation time is about 100 hours, while the total operation time of one trip drilling for the drifting operation and logging operation provided by the present application is about 40 hours, and the improved operation efficiency is 60%.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
Spatially relative terms, such as "above … …," "above … …," "above … …," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (19)
1. A drilling tool assembly for drifting and logging of a horizontal well in one trip, comprising:
the trimming unit (10), the trimming unit (10) comprises a trimming structure (11), the trimming structure (11) is used for cutting the bulges on the well wall of the horizontal well (1), and the trimming unit (10) is provided with a through hole structure;
the detection unit (20) comprises a detection structure (21), a first end of the detection structure (21) penetrates out of the via hole structure and reaches the bottom position of the horizontal well (1), and a second end of the detection structure (21) is connected with the trimming unit (10);
when the trimming unit (10) is subjected to secondary tripping operation, the trimming unit (10) drives the detection structure (21) to move from the bottom of the horizontal well (1) to the wellhead of the horizontal well (1), and the detection structure (21) performs logging operation on the horizontal well (1) on the moving path of the detection structure.
2. The drilling assembly of a drifting and logging trip of a horizontal well according to claim 1, characterized in that the conditioning structure (11) comprises a first cutting tool (111), the first cutting tool (111) having a first bypass hole (1111), the conditioning unit (10) further comprising:
the drill rod structure (12) extends along the length direction of the horizontal well (1), the first end of the first cutting tool (111) is connected with the drill rod structure (12) and is located at one end, close to the bottom of the horizontal well (1), of the drill rod structure (12), the drill rod structure (12) is provided with a second avoidance through hole, the second avoidance through hole extends along the length direction of the drill rod structure (12), and the second avoidance through hole is communicated with the first avoidance through hole (1111) to form the through hole structure;
the first end of the detection structure (21) sequentially penetrates through the second avoidance through hole and the first avoidance through hole (1111) and reaches the bottom position of the horizontal well (1), and the second end of the detection structure (21) is connected with the second end of the first cutting tool (111).
3. The drifting and logging drill assembly of a horizontal well according to claim 2, characterized in that the second end of the detection structure (21) has a lap flange, the second end of the first cutting tool (111) has a stop flange, and the detection structure (21) is overlapped on the stop flange by the lap flange to be connected with the first cutting tool (111).
4. The drilling tool assembly of the drifting and logging drill trip of the horizontal well according to claim 3, characterized in that the stop flange is an annular flange, and the annular flange is formed on the hole wall surface of the first avoidance hole (1111).
5. The drilling tool assembly for drifting and logging one trip of a horizontal well according to claim 2, characterized in that the first cutting tool (111) comprises:
a first mounting shaft (1112), a first end of the first mounting shaft (1112) being connected to the drill rod structure (12), the first mounting shaft (1112) having the first bypass hole (1111), the first bypass hole (1111) being arranged along an axial extension of the first mounting shaft (1112);
a first cutting blade (1113), the first cutting blade (1113) being disposed on a circumferential outer surface of a second end of the first assembly shaft (1112), the first cutting blade (1113) being disposed along an axial extension of the first assembly shaft (1112), an end of the first cutting blade (1113) distal from the boring bar structure (12) having a first cutting tooth (100).
6. The drilling tool assembly for drifting and logging a trip of a horizontal well according to claim 5, characterized in that the first rigging shaft (1112) comprises a first rigging shaft segment (1112a), a first transition shaft segment (1112b) and a first cutting shaft segment (1112c) connected in sequence in a direction away from the drill pipe structure (12), wherein the first rigging shaft segment (1112a) is connected with a joint structure (13) at the end of the drill pipe structure (12), the first transition shaft segment (1112b) is used for connecting the first rigging shaft segment (1112a) and the first cutting shaft segment (1112c), and the first cutting blade (1113) is arranged on the circumferential outer surface of the first cutting shaft segment (1112 c).
7. The well drifting and logging drill assembly of horizontal well of claim 6, characterized in that said first rigging shaft segment (1112a) has a first diameter R1, said first transition shaft segment (1112b) has a second diameter R2, and said first cutting shaft segment (1112c) has a third diameter R3, wherein R1R 3R 2.
8. The drilling assembly of a drift and logging trip of a horizontal well according to claim 6, wherein the area of the cross-section of the first rigging shaft section (1112a) is arranged gradually increasing in a direction approaching the first transition shaft section (1112 b).
9. The horizontal well drifting and logging drill assembly of claim 6, wherein the first cutting blade (1113) is a plurality, and the plurality of first cutting blades (1113) are disposed at intervals around a circumferential outer surface of the first cutting shaft segment (1112 c).
10. The well drifting and logging drill assembly of a horizontal well according to claim 2, characterized in that the drill rod structure (12) comprises a plurality of drill rod sections (121), a plurality of the drill rod sections (121) are connected, the trimming structure (11) further comprises a second cutting tool (112), the second cutting tool (112) has a third bypass hole (1121), and the third bypass hole (1121) communicates with the second bypass hole, and the second cutting tool (112) is located between two adjacent drill rod sections (121) of the plurality of drill rod sections (121).
11. The horizontal well drifting and logging drill assembly of claim 10, wherein the second cutting tool (112) comprises:
a second assembly shaft (1122), a first end of the second assembly shaft (1122) being connected to one of the two adjacent drill pipe sections (121), a second end of the second assembly shaft (1122) being connected to the other of the two adjacent drill pipe sections (121);
a second cutting blade (1123), the second cutting blade (1123) being disposed on a circumferential outer surface of the second mounting shaft (1122), an extending direction of the second cutting blade (1123) being disposed at an angle to an axis of the second mounting shaft (1122).
12. The horizontal well drifting and logging drill tool assembly of claim 11, characterized in that the second assembling shaft (1122) comprises a second assembling shaft section (1122a), a second transition shaft section (1122b), a second cutting shaft section (1122c) and a third assembling shaft section (1122d) which are connected in sequence in the direction away from the first cutting tool (111), wherein the second assembling shaft segment (1122a) is used for connecting with one drill rod segment (121) of two adjacent drill rod segments (121), the second transition shaft segment (1122b) is used for connecting the second assembling shaft segment (1122a) and the second cutting shaft segment (1122c), the second cutting shaft segment (1122c) having the second cutting blade (1123) disposed on a circumferential outer surface thereof, the third assembling shaft section (1122d) is used for connecting with the other drill rod section (121) in the two adjacent drill rod sections (121).
13. The drilling assembly for drifting and logging a single trip of a horizontal well according to claim 12, wherein the second rigging shaft section (1122a), the second transition shaft section (1122b), and the third rigging shaft section (1122d) are coaxially disposed, an axis of the second cutting shaft section (1122c) is parallel to an axis of the third rigging shaft section (1122d), and an axis of the second cutting shaft section (1122c) is offset from the axis of the third rigging shaft section (1122d) by a first predetermined distance.
14. The drilling assembly for drifting and logging a horizontal well according to claim 12, wherein the second cutting blade (1123) comprises a first sub-cutting blade (1123a) and a second sub-cutting blade (1123b), the first sub-cutting blade (1123a) and the second sub-cutting blade (1123b) being disposed axially spaced apart along the second cutting shaft section (1122c), a first end of the first sub-cutting blade (1123a) having the second cutting teeth (200), a first end of the second sub-cutting blade (1123b) having the third cutting teeth (300), and a second end of the first sub-cutting blade (1123a) and a second end of the second sub-cutting blade (1123b) being disposed opposite to each other.
15. The drilling assembly for drifting and logging a horizontal well according to claim 14, wherein the first sub-cutting blade (1123a) is arranged to extend in a first direction and the second sub-cutting blade (1123b) is arranged to extend in a second direction, wherein the first direction and the second direction are both arranged at an angle to an axis of the second cutting shaft section (1122c), and the first direction and the second direction are symmetrically arranged with respect to a gap between a second end of the first sub-cutting blade (1123a) and a second end of the second sub-cutting blade (1123b) such that the first sub-cutting blade (1123a) and the second sub-cutting blade (1123b) constitute a V-shaped structure.
16. The horizontal well drifting and logging drill assembly of one trip according to claim 14, wherein the second cutting blade (1123) is plural, and the plural second cutting blades (1123) are provided at intervals around a circumferential outer surface of the second cutting shaft segment (1122 c).
17. The well-clearing and logging drill assembly of a horizontal well according to claim 10, wherein said second cutting tool (112) is plural, one said second cutting tool (112) being provided between each adjacent two of said plurality of drill rod sections (121).
18. A method for drifting and logging one trip drilling of a horizontal well, characterized in that the horizontal well (1) is drilled with a horizontal well drifting and logging one trip drilling tool assembly, which is the horizontal well drifting and logging one trip drilling tool assembly according to any of claims 1 to 17, the method comprising the steps of:
lowering a trimming unit (10) of a drilling tool assembly of the drifting and logging one-trip drilling of the horizontal well into the horizontal well (1), and cutting a bulge on the well wall of the horizontal well (1) by a trimming structure (11) of the trimming unit (10) to finish drifting operation;
and (2) conveying a detection structure (21) of the detection unit (20) into the horizontal well (1) through a via hole structure of the trimming unit (10), enabling a first end of the detection structure (21) to penetrate out of the via hole structure and reach the bottom position of the horizontal well (1), driving the detection structure (21) to move from the bottom of the horizontal well (1) to the wellhead of the horizontal well (1) by the trimming unit (10) when the trimming unit (10) is subjected to secondary tripping operation, and carrying out logging operation on the horizontal well (1) on a moving path of the detection structure (21).
19. Method of drifting and logging one trip of a horizontal well according to claim 18, characterized in that it further comprises, after completion of the drifting operation by the conditioning unit (10) and before the detection structure (21) enters the horizontal well (1) through the perforation structure, the steps of:
and carrying out one-time tripping operation on the trimming unit (10), wherein the trimming unit (10) is a second preset distance away from the bottom of the horizontal well (1) to reserve a penetrating space for the detection structure (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110064142.4A CN113863857A (en) | 2021-01-18 | 2021-01-18 | Drilling tool assembly for drifting and logging one-trip drilling of horizontal well and one-trip drilling method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110064142.4A CN113863857A (en) | 2021-01-18 | 2021-01-18 | Drilling tool assembly for drifting and logging one-trip drilling of horizontal well and one-trip drilling method |
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| CN113863857A true CN113863857A (en) | 2021-12-31 |
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