Changes
/* ExxonMobil */
'''Explosion fracturing is done in the lateral wells by using a squash head charge'''. Squash head charge is oriented towards the face of the wells by a frame, internal electrical bus is coupled which transmit electrical signal to detonate the squash head charge, a propellant charge propels a proppant into fractures induced in the rock face by an explosion of the squash head charge....[Contd]
===Information from the Articles===
Cui et. al., 2006 PetroChina studied In-fracture Explosive Hydraulic fracturing fluid and its rheological study. An experimental test was performed using In Fracture Explosive Hydraulic Fracturing Fluid (IFEHFF) which is a combination of hydraulic fracturing fluid properties and an explosion fluid (TNT). According to simulator calculation, the system can generate fractures with desired geometry and suspend explosive evenly in the fractures.
===Summary of Explosive Fracturing===
Both Exxonmobil and Geodynamics Inc have worked on increasing the permeability of the formation by inducing explosive fracturing. Geodynamics has worked on technique which can overcome the problem of blockages created by the fines(debris) generated due to explosion whereas Exxonmobil has adopted a technique of drilling lateral wells and placing the squash head charge in the wells. PetroChina conducted experiment test on IFEHFF and shows positive results.
==Sleeve fracturing==
{|border="2" cellspacing="0" cellpadding="4" width="80%"
|align = "center" bgcolor = "#9BBB59" colspan = "4"|'''Sleeve fracturing'''
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|align = "center" bgcolor = "#9BBB59"|'''S.No'''
|align = "center" bgcolor = "#9BBB59"|'''Assignee'''
|align = "center" bgcolor = "#9BBB59"|'''Patent'''
|align = "center" bgcolor = "#9BBB59"|'''Comment'''
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|align = "center" bgcolor = "#9BBB59"|1
|align = "center"|'''Coiled Tubing Specialties'''
|align = "center"|<font color="#0000FF"><u>[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220110290561%22.PGNR.&OS=DN/20110290561&RS=DN/20110290561 US20110290561A1 ]</u></font>
|align = "center"|Downhole Hydraulic Jetting Assembly, and Method for Stimulating a Production Wellbore
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===Coiled Tubing Specialties===
[http://appft1.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PG01&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.html&r=1&f=G&l=50&s1=%2220110290561%22.PGNR.&OS=DN/20110290561&RS=DN/20110290561 US20110290561A1] titled "Downhole Hydraulic Jetting Assembly, and Method for Stimulating a Production Wellbore" by Coiled Tubing Specialties.
Need of a method for forming lateral boreholes from a parent wellbore for hydrocarbon recovery from the formation. It provides a new stimulation technique for hydrocarbon-producing formation by the formation of small lateral boreholes from an existing wellbore using a hydraulic jetting assembly.
===Information from the Articles===
Rahim et. al., 2011 of '''Saudi Aramco '''studied on success criteria for Multistage Fracturing of tight gas in Saudi Arabia. Open Hole Multi Stage (OHMS) fracturing was used to improve hydrocarbon production from the deep gas carbonate sandstone wells in Saudi Arabia. Here authors talk about dual sleeve hydraulic fracturing device. OHMS system with dual hydraulic sleeves works efficiently and never showed any sign of failure in getting open. Generally ball (diameter ½", ¼", and 1/8") activated fracturing sleeves was used to open access to different stages....[Contd]
