A knowledge-based company has produced fishing tools for the drilling sector for the first time in Iran, which have a lower price than their foreign counterparts.
The fishing tool of Nasim Karvarzi Company (also known as Nasimco) named overshot was used in the National Iranian Drilling Company’s Fath-48 rig in the fiscal 2011-12, according to the company’s CEO.
“After assessing the needs of drilling operations and identifying the items required in the field, the company started working on the design and production of tools and accessories, such as the first fishing tool in Iran,” Morteza Pir-Abbasi was also quoted as saying by the news portal of Vice Presidency for Science and Technology.
Referring to the importance of overshot tools, he added that this equipment is one of the strategic items of the drilling sector.
“Every rig should have a complete set of this tool of different sizes so that when residue accumulates in the well, the fishing operation can be started. The domestic fishing tools were also selected as the best national design in the Third National Exhibition of Science to Practice,” he said.
The CEO noted that the company is considered Iran’s largest manufacturer of drilling fishing tools and their accessories of different sizes and types.
“The company’s products are cheaper than their Western counterparts. While in most cases, the quality of domestic products matches that of foreign models, in some cases they have a better quality than their counterparts,” he added.
Pir-Abbasi said 33 people are working in Nasim Karvarzi Company and its affiliates directly, of which 11 people are working in the company’s construction operations department.
The company’s main drilling fishing tools include junk subs, casing patches, die collars (aka skirted taper taps), overshot, surge tanks and bulk plants.
Having a cup for hauling heavy objects out of the hole is considered an advantage for the company’s junk subs. By operating the junk sub above a scraper, operators can get quicker and cleaner results.
The company’s other fishing tool called surge tank is used to store liquids before disposal, which can also be used as an additional stage of separation and metering. It is possible to use the surge tank as a second stage, two-phase separator with the addition of gas and fluid metering. Their design also allows the operator to keep back pressure on transfer pumps.
Core Acidizing Device Developed
A knowledge-based company has produced a core acidizing device that helps improve the extraction process from oil wells.
Acidization is one of the widely used methods in the well stimulation process, which increases oil and gas production at a relatively low cost and in a short period, according to the CEO of Fanavari Ezdiad Bardasht Fars Company.
“Due to problems caused by sanctions and the high prices of foreign counterparts, the company produced an affordable and more efficient core acidizing device to meet domestic needs,” Moein Nabipour was also quoted as saying by the news portal of the Vice Presidency for Science and Technology.
He added that some factors in drilling operations significantly reduce oil and gas production.
“Formation damage due to drilling, cementing, meshwork, well completion, repair and stimulation operations can cause a reduction in oil extraction,” he said.
“The acidizing operation is usually the best method to improve well production and increase crust coefficient. The success of this operation depends on the type, concentration, volume and injection method of the acid, which are mainly evaluated and designed after conducting core acidizing dynamic tests.”
Nabipour stressed that the quality and type of additives used and the type of formation are decisive factors in the acidizing process.
“In this operation, acid is injected into the layers of oil and gas formations with different pressures to increase the production rate by opening the existing channels,” he added.
According to the CEO, the device can be used by oil and gas industries as well as drilling and production companies.
“The company is the exclusive producer of this type of core acidizing device in Iran. A limited number of foreign companies produce this device, but the Iranian model has better quality, efficiency and lower cost than foreign counterparts,” he said.
“The domestic core acidizing device has annually prevented the currency outflow of $20 million from making the import of foreign counterparts unnecessary.”
He stressed that the use of gas pressure regulator, accurate injection of fluids, recording and controlling all data during the test, smart management of overhead pressure to avoid any possible damage and the replacement of stainless steel with titanium or hastelloy are the main advantages of the domestic acidizing device.
Nabipour noted that the company has presently created 15 direct and 10 indirect jobs.
