CN101131068A - Yield increasing technique for fixed point deep penetration horizontal drilling in oil-water well oil layer - Google Patents
Yield increasing technique for fixed point deep penetration horizontal drilling in oil-water well oil layer Download PDFInfo
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- CN101131068A CN101131068A CNA2007101444230A CN200710144423A CN101131068A CN 101131068 A CN101131068 A CN 101131068A CN A2007101444230 A CNA2007101444230 A CN A2007101444230A CN 200710144423 A CN200710144423 A CN 200710144423A CN 101131068 A CN101131068 A CN 101131068A
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Abstract
The present invention relates to petroleum producing technology, and is horizontal drilling process in oil reservoir of oil and water well for increasing yield. The process includes the following steps: laying the underground horizontal boring machine with electric cable in cable car to preset depth, drilling holes on the casing in the mud collar, polluted zone and oil reservoir successively with the bit in the tip of flexible shaft, and reclaiming the bit after finishing drilling. The present invention has the advantages of no damage to the casing, no compacted zone in the drilled horizontal holes, effective penetration of polluted zone, simple apparatus structure, etc.
Description
Technical field:
The present invention relates to the oil field technical field of oil production engineering, belong to a kind of Yield increasing technique for fixed point deep penetration horizontal drilling in oil-water well oil layer.
Background technology:
At present, field use flood type fixed point abrasive material gun perforation process, need pump truck at work progress, mix husky car, irritate car, cost is than higher, and perforating depth is subjected to the influence of confined pressure bigger, and sleeve pipe is had damage significantly; Waterpower deep penetration jet perforating technology is a kind of perforating technology that is used for the oil field transformation that development in recent years is got up, it also is a kind of volume increase reforming technology of field use, but waterpower deep penetration jet perforation is because this process equipment complex structure, well head operation pressure height, to the water quality requirement harshness, winter can't construction operation, in work progress, also need pump truck, tank car, cost is also than higher, and formed compaction band in the near wellbore zone, greatly reduces the flow conductivity of oil-water well near wellbore zone.More than the problem that exists of two kinds of gun perforation process caused the site operation success rate low, be difficult to satisfy the needs of field produces.
Summary of the invention:
Purpose of the present invention is exactly to have that the ground investment is big, device structure is complicated, form compaction band in the near wellbore zone and sleeve pipe is had the problem of damage and a kind of Yield increasing technique for fixed point deep penetration horizontal drilling in oil-water well oil layer of inventing at existing technology.
The present invention is by realizing with lower device: cable car, main control computer, cable, embedded measure and control device, anchoring device, circulating device, flexible axle and drill bit, and wherein embedded measure and control device, anchoring device, circulating device, flexible axle, drill bit have been formed down-hole horizontal boring machine;
The present invention realizes by following steps:
A, at first the cable by cable car with down-hole horizontal boring machine down to the prebored hole degree of depth;
B, then on ground, send control signal by main control computer, after by embedded measure and control device signal amplify being handled, make anchoring device work, down-hole horizontal boring machine is anchored on the inwall of sleeve pipe;
C, on ground, send control signal by main control computer, after by embedded measure and control device signal amplify being handled, make circulating device in running order, and make the weep hole of drill bit have continuous High-Pressure Water to penetrate;
D, on ground, send control signal by main control computer, after by embedded measure and control device signal amplify being handled, flexible axle rotated at a high speed and slowly advance, and carry drill bit and rotate at a high speed and slowly advance;
E, utilize the drill bit of rotation at a high speed to hole on sleeve pipe, flexible axle carries drill bit and advances then, continues to hole in cement sheath, improves the pace of drill bit; In the operation contaminated zone, hole again, enter oil reservoir at last, and in the oil reservoir internal drilling;
F, after drilling depth arrives desired depth, the low speed rotation flexible axle is slowly regained drill bit, boring is finished;
G, on ground, send control signal by main control computer, after by embedded measure and control device signal amplify being handled, anchoring device and circulating device are quit work;
H, the cable by cable car make horizontal boring machine arrive next prebored hole degree of depth, repeating step a～g.
The whole process of this technology can be regulated rotating speed, the pressure of the drill and the rate of penetration of flexible axle.
The whole process of this technology is monitored in real time and is controlled by main control computer on ground, can also be delivered to test signals such as the pressure of the drill of horizontal boring machine, torque, rotating speed on the main control computer of ground simultaneously and also preserve.
Compared with the prior art the present invention has following advantage:
1), to not infringement of sleeve pipe; 2), the lateral aperture that is got out does not have compaction band; 3), can effectively penetrate drilling well and workover treatment contaminated zone; 4) it is remarkable, seriously to reach viscous crude formation stimulation effect in secondary pollution; 5), device structure is simple, cable remove and terrestrial operation control convenient.
Description of drawings:
Fig. 1 is a The field schematic diagram of the present invention.
The specific embodiment:
Below in conjunction with accompanying drawing the present invention is done further auspicious stating: the present invention is by realizing with lower device: cable car 1, main control computer 2, cable 3, embedded measure and control device 4, anchoring device 5, circulating device 6, flexible axle 7 and drill bit 8, and wherein embedded measure and control device 4, anchoring device 5, circulating device 6, flexible axle 7, drill bit 8 have been formed down-hole horizontal boring machine;
The present invention realizes by following steps:
A, at first the cable 3 by cable car 1 with down-hole horizontal boring machine down to the prebored hole degree of depth;
B, then on ground, send control signal by main control computer 2, by the 4 pairs of signals of embedded measure and control device amplify handle after, make anchoring device 5 work, down-hole horizontal boring machine is anchored on the inwall of sleeve pipe 9;
C, on ground, send control signal by main control computer 2, by the 4 pairs of signals of embedded measure and control device amplify handle after, make circulating device 6 in running order, and make the weep hole of drill bit 8 have continuous High-Pressure Water to penetrate;
D, on ground, send control signal by main control computer 2, by the 4 pairs of signals of embedded measure and control device amplify handle after, make flexible axle 7 rotation and slowly advancing at a high speed, and carry drill bit 8 rotation and slowly advancing at a high speed;
E, utilize the drill bit 8 of rotation at a high speed hole on sleeve pipe 9, flexible axle 7 carries drill bit 8 and advances then, continues boring in cement sheath 10, the pace of raising drill bit 8; Boring in operation contaminated zone 11 again enters oil reservoir 12 at last, and in oil reservoir 12 internal drillings;
F, after drilling depth arrives desired depth, low speed rotation flexible axle 7 is slowly regained drill bit 8, boring is finished;
G, on ground, send control signal by main control computer 2, by the 4 pairs of signals of embedded measure and control device amplify handle after, anchoring device 5 and circulating device 6 are quit work;
H, the cable 3 by cable car 1 make horizontal boring machine arrive next prebored hole degree of depth, repeating step a～g.
The whole process of this technology can be regulated rotating speed, the pressure of the drill and the rate of penetration of flexible axle 7.
The whole process of this technology is monitored in real time and is controlled by main control computer 2 on ground, can also be delivered to test signals such as the pressure of the drill of horizontal boring machine, torque, rotating speed on the ground main control computer 2 simultaneously and also preserve.
The lateral aperture that utilize the present invention to get out that eyelet is dark, the aperture is big, does not have compaction band at sleeve pipe 9, cement sheath 10 and reservoir, can effectively penetrate the operation contaminated zone 11 of drilling well and well workover, increase the flow conductivity of near wellbore zone, thereby the notes that strengthen hyposmosis, low aquifer are adopted intensity, do not employ or employ the remaining oil of poor oil reservoir in tap the latent power less permeable layer and the high infiltration thick-layer.
Claims (3)
1. Yield increasing technique for fixed point deep penetration horizontal drilling in oil-water well oil layer relates to the oil field technical field of oil production engineering, belong to a kind of Yield increasing technique for fixed point deep penetration horizontal drilling in oil-water well oil layer, the present invention is by realizing with lower device: cable car (1), main control computer (2), cable (3), embedded measure and control device (4), anchoring device (5), circulating device (6), flexible axle (7) and drill bit (8), and wherein embedded measure and control device (4), anchoring device (5), circulating device (6), flexible axle (7), drill bit (8) have been formed down-hole horizontal boring machine; It is characterized in that: the present invention realizes by following steps:
A, at first the cable (3) by cable car (1) with down-hole horizontal boring machine down to the prebored hole degree of depth;
B, then on ground, send control signal by main control computer (2), after by embedded measure and control device (4) signal amplify being handled, make anchoring device (5) work, down-hole horizontal boring machine is anchored on the inwall of sleeve pipe (9);
C, on ground, send control signal by main control computer (2), after by embedded measure and control device (4) signal amplify being handled, make circulating device (6) in running order, and make the weep hole of drill bit (8) have continuous High-Pressure Water to penetrate;
D, on ground, send control signal by main control computer (2), after by embedded measure and control device (4) signal amplify being handled, make flexible axle (7) rotation and slowly advancing at a high speed, and carry drill bit (8) rotation and slowly advancing at a high speed;
E, utilize the drill bit (8) of rotation at a high speed to go up boring at sleeve pipe (9), flexible axle (7) carries drill bit (8) and advances then, continues boring in cement sheath (10), the pace of raising drill bit (8); Boring in operation contaminated zone (11) again enters oil reservoir (12) at last, and in oil reservoir (12) internal drilling;
F, after drilling depth arrives desired depth, low speed rotation flexible axle (7) is slowly regained drill bit (8), boring is finished;
G, on ground, send control signal by main control computer (2), after by embedded measure and control device (4) signal amplify being handled, anchoring device (5) and circulating device (6) are quit work;
H, the cable (3) by cable car (1) make horizontal boring machine arrive next prebored hole degree of depth, repeating step a～g.
2. according to claims 1 described Yield increasing technique for fixed point deep penetration horizontal drilling in oil-water well oil layer, it is characterized in that: the whole process of this technology can be regulated rotating speed, the pressure of the drill and the rate of penetration of flexible axle (7).
3. according to claims 1 described Yield increasing technique for fixed point deep penetration horizontal drilling in oil-water well oil layer, it is characterized in that: the whole process of this technology is monitored in real time and is controlled by main control computer (2) on ground, can also be delivered to ground main control computer (2) to test signals such as the pressure of the drill of horizontal boring machine, torque, rotating speeds simultaneously and go up and preserve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101444230A CN100560930C (en) | 2007-10-10 | 2007-10-10 | Yield increasing technique for fixed point deep penetration horizontal drilling in oil-water well oil layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007101444230A CN100560930C (en) | 2007-10-10 | 2007-10-10 | Yield increasing technique for fixed point deep penetration horizontal drilling in oil-water well oil layer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101131068A true CN101131068A (en) | 2008-02-27 |
| CN100560930C CN100560930C (en) | 2009-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CNB2007101444230A Active CN100560930C (en) | 2007-10-10 | 2007-10-10 | Yield increasing technique for fixed point deep penetration horizontal drilling in oil-water well oil layer |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892833A (en) * | 2010-07-02 | 2010-11-24 | 大庆油田有限责任公司 | Pressure monitoring method for use in vertical well wall small-diameter open hole horizontal well drilling of oil-water wells |
| CN101343995B (en) * | 2008-08-08 | 2011-05-11 | 大庆油田有限责任公司 | Control device of down-hole horizontal boring machine |
| CN106639871A (en) * | 2017-03-15 | 2017-05-10 | 西安同兴石油设备技术有限公司 | Horizontal well reservoir reformation equipment and reformation method thereof |
| CN108915590A (en) * | 2018-06-15 | 2018-11-30 | 中国石油集团长城钻探工程有限公司 | The automatically controlled drilling equipment of deep penetration |
-
2007
- 2007-10-10 CN CNB2007101444230A patent/CN100560930C/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101343995B (en) * | 2008-08-08 | 2011-05-11 | 大庆油田有限责任公司 | Control device of down-hole horizontal boring machine |
| CN101892833A (en) * | 2010-07-02 | 2010-11-24 | 大庆油田有限责任公司 | Pressure monitoring method for use in vertical well wall small-diameter open hole horizontal well drilling of oil-water wells |
| CN106639871A (en) * | 2017-03-15 | 2017-05-10 | 西安同兴石油设备技术有限公司 | Horizontal well reservoir reformation equipment and reformation method thereof |
| CN108915590A (en) * | 2018-06-15 | 2018-11-30 | 中国石油集团长城钻探工程有限公司 | The automatically controlled drilling equipment of deep penetration |
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| Publication number | Publication date |
|---|---|
| CN100560930C (en) | 2009-11-18 |
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Effective date of registration: 20211223 Address after: 163453 Heilongjiang Province, Daqing City Ranghulu District Central Plains Road No. 99 Patentee after: Daqing Oilfield Co.,Ltd. Patentee after: PetroChina Co Ltd Address before: 163453 Heilongjiang Province, Daqing City Ranghulu District Central Plains Road No. 99 Patentee before: Daqing Oilfield Co.,Ltd. |
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