Orthogonal net seam fracturing and perforating device
A mesh and fracturing technology, applied in the field of orthogonal mesh fracturing perforating devices, can solve problems such as a single independent section, and achieve the effects of reducing inter-projectile interference, improving recovery rate, and eliminating inter-projectile interference
Pending Publication Date: 2018-08-17
大庆金祥寓科技有限公司
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Problems solved by technology
[0004] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide an orthogonal network fracture fracturing and perforating device, which solves the problem that only a single independent section is formed after fracturing in the past. The realized criss-cross network fracture system greatly improves the seepage capacity between the reservoir and the wellbore, which can greatly increase the recovery rate of oil and gas
Method used
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specific Embodiment approach
[0028] The specific implementation method is as follows: the bomb distribution mode of this device is arranged in a right-hand spiral, and the phase angle between the clusters is 0 degree, that is, the distance between the loading hole C13 and the loading hole D14 and between the loading hole H18 and the loading hole I19 The phase angles are all 0 degrees, and the bullet spacing of the deep-penetrating perforating charges 3 in each loading hole is 62.7 mm; the horizontal crack planes and vertical crack planes produced by the perforation are criss-crossed, forming a criss-cross network. sewing system.
[0029] In the perforation construction of oil and gas wells, the perforating charges are detonated successively, and the shock wave generated by the detonation of the two adjacent perforating charges will overlap with the detonation wave of the second perforating charge. The ammunition cover of the second firing hole is placed in an asymmetric pressure field, and the cover is as...
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The invention provides an orthogonal net seam fracturing and perforating device, and relates to the field of oil field oil-and-gas well perforation completion. The orthogonal net seam fracturing and perforating device comprises a gun body. The gun body is a hollow cavity with openings formed in the two ends. One end of the gun body is connected with a detonation connector, the detonation connectormakes contact with one end of a perforating device, the other end of the perforating device is connected with a tail disc, the tail disc is connected with a tensioning disc, the tensioning disc makescontact with a gun tail middle connector, and the other end of the gun body is connected with a gun tail or connected with a next section of gun body through the middle connector. Communication between rock seams and rock stratums is achieved to the maximum degree through the perforating device, transverse fracture surfaces and vertical fracture surfaces which are generated by perforating are staggered longitudinally and transversely, a longitudinally and transversely staggered net seam system is established, a maximum oil gathering effect can be acquired in an oil well section in a reservoiroil pool, the recovery ratio of oil and gas is greatly increased, a medium between perforating bullets is changed, and inter-bullet interference is weakened and eliminated through reinforced fiber nylon bullet supports.
Description
technical field [0001] The invention relates to the field of perforation and completion of oil and gas wells in oil fields, in particular to an orthogonal network fracture fracturing perforation device. Background technique [0002] The concept of using fracturing to create a network-fracture system in near-wellbore formations has long been proposed abroad. That is, in the process of well completion, through fracturing construction, a perfect network fracture system is created to obtain the maximum oil collection effect in the oil well section in the reservoir oil reservoir, thereby improving the oil and gas recovery rate. In the past, in the conventional perforation perpendicular to the wellbore, all the perforation tunnels in the perforation section were single and independent, and the fractures that can be created through tunnel fracturing mostly rely on natural fractures or extend freely along the direction of geological stress. , the gap created is irregular and cannot...
Claims
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IPC IPC(8): E21B43/116E21B43/26
CPCE21B43/116E21B43/26
Inventor 禹栽星刘巩权李斌俞海许俊明李连平张国杰
Owner 大庆金祥寓科技有限公司